EyeKnowYou: A DIY Toolkit to Support Monitoring Cognitive Load and Actual Screen Time using a Head-Mounted Webcam. - Tharindu Indrajith Kaluarachchi; Shardul Sapkota; Jules Taradel; Aristée Thevenon; Denys J. C. Matthies; Suranga Nanayakkara (MobileHCI (Extended Abstracts), 2021)